Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing our new design; and,

FIG. 2 is another front view thereof, in which a display screen in broken lines is provided to illustrate an example environment.

The broken lines in the figures show portions of the display screen or portion thereof with icon which form no part of the claimed design.

The dot-dash lines in the figures represent a boundary line which forms no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 